Really cool idea and it's pretty fun.
The dodge is a bit weird to time. Sometimes it seems to work and sometimes it doesn't. It would also be nice that if you held the key it wouldn't spam the dodge animation, it's a bit disorienting.
Also, since the health bar goes down so slowly it's hard to tell when I'm actually doing damage. I think it'd be beter to show much health did he have originally to help with this.